Download Action of Phytase

Phytate P content of Major
Swine Feeds
Foodstuff
Barley
Corn
Wheat
Soybean meal
Cottonseed meal
Sesame meal
Wheat bran
Total P(%)
0.34
0.26
0.30
0.61
1.07
1.27
1.37
Phytate
(% of Total P)
56
66
67
61
70
81
70
Adapted from Nelson et al. Poultry Sci. 47:1372 ‘68
Action of Phytase
+ +
=
O
O Ca O
+
O=P-O O- P =O
Ca O-C-CH2-Protein
Starch
O
O+
O
OH
O=P-O
Protein
+
- Mg H
O
H
H
O
CH
+
H
2
O=P-O + 6 H 2O
NH+
H
H
O
3O
OH
- O-P=O
O
H
O
H
O-P=O
OH
Phytase
Phytate
CH2 0H
Starch
OH
H
H
OH
H
+ 6 H3 PO
4
+
OH
Inositol
Protein
Starch
Minerals
How the EnviropigTM Works
Phytase produced in the
salivary glands and
secreted in the saliva
Pancreas
Liver
Indigestible
Phytate
phosphorus
in the diet
Cecum
Stomach
Phytase
Phytate Phosphate
Small
Intestine
PHOSPHATE Colon
ABSORPTION
Phytate in a non-Transgenic pig
Phytate in the Enviropig
Manure
low in
Phosphorus